// Callback that creates and populates a data table, 
// instantiates the pie chart, passes in the data and
// draws it.
drawChart = function() {
  var wrapper = new google.visualization.ChartWrapper({
          chartType: 'ColumnChart',
          dataTable: [['Germany', 'USA', 'Brazil', 'Canada', 'France', 'RU'],
                      [700, 300, 400, 500, 600, 800]],
          options: {'title': 'Countries'},
          containerId: 'chart_div'
        });
        wrapper.draw();
}

